Alphabet Maze from Can You See What I See?: Picture Puzzles to Search and Solve 2002 by Walter Wick

In celebration of National Puzzle Day, I present to you a challenge from the first Can You See What I See? book. In that book, the rhyming list of hidden objects for each picture ends with a cryptic clue to another puzzle to solve. For this picture, the rhyme ends as follows: "...a girl with a book, a red letter B, and an alphabet path from A to Z!" There are several "dead ends", but only one solution. Can you solve it?